table.tablesorter {

}
table.tablesorter th {

}
table.tablesorter td {

}
table.tablesorter .even {

}
table.tablesorter .odd {

}
table.tablesorter .header {
    background-image: url(../img/bg.png);
    background-repeat: no-repeat;
    padding-left: 30px;
    padding-top: 8px;
    height: auto;
}
table.tablesorter .headerSortUp {
    background-image: url(../img/asc.png);
    background-repeat: no-repeat;
}
table.tablesorter .headerSortDown {
    background-image: url(../img/desc.png);
    background-repeat: no-repeat;
}